Jovanovac families are Croats and they are mostly from Zupanja area. In the past century, relatively most of Croatian residents bearing this family name were born in Zupanja area and in Zupanja area.
Prevalence
About 330 people with faimily name Jovanovac live in Croatia today, in 120 households. There were 300 of them in the middle of the past century, and their number increased by 10 percent. They are located in 9 Croatian counties, in 14 cities and 14 other places, mostly in Gradiste (140) and Bosnjaci (90) in Zupanja area, Zupanja (25), Zagreb (20), and in Vinkovci (20).
Outside Croatia
Family name Jovanovac is present in four countries on two continents.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.